Mauritius Tax Residency for Expats: The 15% Island Hub

Mauritius runs one of the cleanest low-rate tax systems in the Indian Ocean: a headline 15% flat rate for both companies and top-band individuals, no capital gains tax, no wealth tax, no inheritance tax, and no withholding on dividends, interest or royalties paid to non-residents. For expats and founders using the island as a personal base or holding-company jurisdiction, the important details sit underneath that headline — the 183-day residency test, the permit tracks used to actually get in, the remittance treatment of foreign income, and the substance you need if you want the effective 3% rate on qualifying foreign-source profits.

This guide walks through Mauritius tax residency for expats as a practical framework: how residency is triggered, what different income types cost, which permit categories exist, what a Global Business Company actually gets you, and where the regime is weaker than the marketing suggests. Figures reflect the position as of 2026 and should be confirmed with a Mauritian adviser before any move.

The 15% headline in one place

Mauritius uses the same 15% number in three different places, which is where a lot of confusion starts. It helps to separate them:

• Personal income tax is progressive from 0% to a top marginal rate of 20%. Lower bands sit at reduced rates. The 15% figure sometimes quoted for individuals refers to older flat-rate history and mid-band brackets rather than a true single flat tax.
• Corporate income tax is a genuinely flat 15% headline rate on Mauritian-source and worldwide income of resident companies, subject to the partial-exemption regime described below.
• VAT is 15% on most goods and services, with the usual exemptions and zero-ratings for exports.

There is no capital gains tax on the disposal of shares or immovable property held by individuals, no wealth tax, no inheritance or estate duty, and no domestic withholding on dividends, interest or royalties paid to non-residents. That combination is what makes the island attractive for both retirees drawing investment income and holding structures moving capital between Africa, Asia and Europe.

The 183-day residency test

An individual is Mauritian tax resident in an income year (year to 30 June) if they are physically present in Mauritius for 183 days or more in that year, or for an aggregate of 270 days across the current year and the two preceding income years. There is no lifestyle or centre-of-vital-interests test bolted on top — the days are the test.

Residents are, in principle, taxable on worldwide income. In practice, foreign-source income received by an individual has historically been assessable only to the extent it is remitted to Mauritius. This remittance element is one of the most frequently misread parts of the system: it is a long-standing feature of the code, but it has been narrowed and reshaped by successive Finance Acts, and the interaction with anti-avoidance and controlled-foreign-company rules is nuanced. Anyone planning around remittance treatment as of 2026 should get a written opinion from a Mauritian adviser rather than rely on generic summaries.

For a broader framework on how these day-count and treaty tests fit together, see the how tax residency works guide and the territorial vs worldwide taxation explainer.

Getting in: occupation permits and the premium visa

Physical presence for 183 days is meaningless unless there is a legal basis to be on the island for that long. Mauritius offers two main tracks: Occupation Permits for people who want to work, invest or retire on the island, and the Premium Visa for remote workers whose employer or clients sit abroad.

Occupation Permit categories

The Occupation Permit is a combined work-and-residence permit issued by the Economic Development Board. There are four main sub-categories:

• Investor — for people investing a minimum sum in a qualifying Mauritian business. Amount, structure and evidence requirements are reviewed periodically, so treat any figure you read as indicative until confirmed.
• Professional — for employed expatriates earning above a monthly salary threshold set by the Economic Development Board. Certain sectors (financial services, ICT, life sciences) have historically had lower thresholds.
• Self-employed — for individuals earning income from a Mauritian business account and meeting a minimum initial transfer.
• Retired non-citizen — for applicants aged 50+ committing to a minimum monthly transfer into a local account for the duration of the permit.

Successful applicants typically hold a permit for a defined initial period, extendable, with a path to permanent residency after a set number of years of continuous holding and compliance with the monetary thresholds. Specific years, amounts and renewal rules should be verified against the current Economic Development Board schedule with a local adviser.

The Premium Visa

The Premium Visa was introduced to attract remote workers whose income sources lie outside Mauritius. It is granted for one year, renewable, and does not by itself confer tax residency — that still requires meeting the 183-day count. The critical tax point for Premium Visa holders is the treatment of remote earnings: income paid from abroad and kept abroad, without remittance to Mauritius, has historically fallen outside the Mauritian tax net for individuals who are not Mauritian tax resident, and even for residents the remittance basis has limited the local charge. This is exactly the area to verify carefully — it is central to any expat plan built on the visa, and the rules interact with the foreign employer's own home-country payroll obligations.

For a comparison of how other remote-work-friendly jurisdictions treat foreign employers, the remote work with a foreign employer piece is a useful counterpoint.

Corporate tax and the effective 3% rate

Mauritius runs a 15% corporate tax rate, but a large slice of the country's usefulness for holding structures sits in the 80% partial exemption. Where a company meets substance conditions, 80% of qualifying foreign-source income is exempt from tax, leaving an effective rate of 3%. Categories that typically qualify include:

• Foreign dividends, subject to conditions on the payer
• Foreign interest
• Income from foreign-source intellectual property royalties
• Certain gains on disposals of foreign participations
• Income from ship and aircraft leasing, in defined circumstances

The exemption is not automatic. It requires the company to demonstrate that its core income-generating activities occur in Mauritius, that it employs a minimum number of suitably qualified personnel on the island directly or through outsourcing, and that its operating expenditure meets thresholds prescribed by the Financial Services Commission for the activity in question. This is the same substance logic now common across low-rate jurisdictions — see the substance requirements explained guide for how these tests are structured globally.

Two further points shape the corporate picture as of 2026:

• From 1 July 2026, an Alternative Minimum Tax applies to companies operating in specified sectors including hotels, insurance, financial intermediation, real estate and telecoms. The AMT sets a floor on the tax paid regardless of exemptions and reliefs.
• Global anti-base-erosion rules from OECD Pillar Two continue to affect how large multinational groups view Mauritius. In-scope groups face a top-up tax to a 15% effective rate in their ultimate parent jurisdiction, which erodes some of the pure-rate advantage of the 3% effective rate for the very largest users. Standalone founders and mid-size holding structures below the €750m consolidated revenue threshold are not directly affected.

Global Business Companies and Authorised Companies

Historically, foreign-owned Mauritian holding vehicles were licensed as Global Business Category 1 (GBC1) or Category 2 (GBC2) companies. That framework was replaced under reforms following international pressure on preferential regimes. The current structures are:

• Global Business Company (GBC) — a Mauritian tax-resident company with foreign ownership and majority foreign-source income. Eligible for the 80% partial exemption where substance conditions are met, and able to access Mauritius's tax treaty network.
• Authorised Company (AC) — a Mauritian-incorporated company that is centrally managed and controlled outside Mauritius. It is treated as non-resident for Mauritian tax purposes, is generally outside the Mauritian tax net, and does not access treaty benefits.

Which structure fits depends heavily on where treaty access matters and whether the group can meet Mauritian substance. Founders comparing hubs at a higher level often look at Mauritius alongside Singapore, Hong Kong, Cyprus and Malta; the UAE vs Singapore vs Hong Kong for tech founders analysis frames the same set of trade-offs from a different angle.

Treaty network and Africa–Asia positioning

Mauritius has an unusually large tax treaty network for a small state, with agreements covering many African jurisdictions and key Asian partners. The commercial pitch — a stable common-law jurisdiction with an English-language legal system, deep double-tax treaty coverage into Africa, and low friction on foreign exchange — is real, but it comes with two important caveats:

• The India–Mauritius treaty was substantially renegotiated in 2016, ending the historical exemption from capital gains tax in India on shares of Indian companies held via Mauritian vehicles. Any legacy planning that assumed the older treatment is out of date.
• Treaty benefits are increasingly conditional on principal purpose tests and substance. Access to a treaty is not automatic even where an entity is technically resident.

For a framework on how to think about treaty planning generally, see double taxation treaties explained. For a broader survey of low-rate hubs, the best countries for expat tax rates 2026 comparison sets Mauritius alongside comparable options.

What the personal tax picture actually costs

For a resident individual in Mauritius, the top marginal personal income tax rate is 20%, applied to earned income within the progressive schedule. Investment income earned locally — dividends from Mauritian companies, interest from Mauritian banks — is generally received without withholding under the 0% domestic rates. Foreign investment income received by residents is, in principle, part of the worldwide-income base, subject to the remittance nuances discussed above.

Where Mauritius stands out is what it does not tax at the individual level:

That set of zeros is the reason retirees and founders drawing significant investment income look at Mauritius even where the earned-income rate is not dramatically lower than a European alternative.

Where Mauritius is weaker than the pitch

Three areas warrant honest scrutiny before an expat plan crystallises:

• Reputational and correspondent-banking friction. Mauritius has moved on and off international grey lists over the past decade. Even when formally clean, correspondent banks can apply enhanced due diligence to Mauritian-domiciled entities, which slows account opening and payment flows.
• Substance is not a formality. The 3% effective rate is conditional on real activity in Mauritius: qualified staff, office presence, operating expenditure and locally-taken decisions. Structures that skip this in the hope of not being examined are the ones that fail on audit.
• Alternative Minimum Tax and Pillar Two. The July 2026 AMT for specified sectors and the ongoing Pillar Two rollout narrow the practical benefit for some categories of user. Standalone founders below the Pillar Two threshold retain the full advantage; large multinationals do not.

Comparing Mauritius to other low-rate hubs

Mauritius is often compared to a small set of other flat-rate or low-rate jurisdictions:

The comparison is rarely won by headline rate alone. Substance costs, banking access, treaty network, cost of living and — critically — the interaction with the founder's home-country CFC and departure-tax rules all move the needle. A US citizen, for example, retains US federal filing obligations regardless of where they base themselves; a UK national's exit is shaped by the 2026 non-dom reforms rather than by Mauritius directly.

Where to go next

For the raw data on rates and thresholds referenced above, see the Mauritius country page. To sanity-check the residency and holding-structure choice against alternatives, run the country comparison tool or work through the tax residency guide, the substance requirements guide, and the TaxAtlas FAQ. This article is informational and does not constitute tax or legal advice — for a specific plan, retain a Mauritian adviser and, if relevant, a home-country tax adviser to model both sides of the move.